Update dependency johnpbloch/wordpress to v6.4.0

See merge request !323

Remove caching from pages ending with a / which MAY (or may not, more
likely) help in resolving issue #134.

Update the list of mobile user agents.

Update dependency noblogs/wp-mat to v0.1.3

See merge request !322

The cache/.htaccess mechanism should actually be moved into
the apache2 config, instead of the current hackish solution...

Update dependency wpackagist-theme/lalita to v1.4.3

See merge request !321

Update dependency wpackagist-plugin/unconfirmed to v1.3.6

See merge request !314

Update dependency wpackagist-theme/twentytwenty to v2.3

See merge request !317

Update dependency wpackagist-theme/twentyseventeen to v3.3

See merge request !316

Update dependency wpackagist-theme/twentysixteen to v3

See merge request !318

Update dependency wpackagist-plugin/activitypub to v1.0.10

See merge request !320

Update dependency wpackagist-plugin/activitypub to v1.0.8

See merge request !319

Update dependency wpackagist-theme/twentynineteen to v2.6

See merge request !315

Update dependency noblogs/themes-misc to v0.1.34

See merge request !313

Update dependency wpackagist-plugin/activitypub to v1.0.7

See merge request !312

Update dependency johnpbloch/wordpress to v6.3.2

See merge request !310

Needed to find wp-cli, a dependency of noblogs-cli.

Update dependency wpackagist-plugin/activitypub to v1.0.6

See merge request !309

Update dependency wpackagist-plugin/activitypub to v1.0.5

See merge request !308

Update dependency wpackagist-plugin/activitypub to v1.0.4

See merge request !307